Concrete mixer



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ii ii htt- Fatentod Dec. 27, 192% NI'TED STATES PATENT orrlcisp l'tllflltl HILSOLN', O'F Ittlllll RVASHIIINGTON, "WISCONSIN. AE-ltlIG-N'Olft 'lO KWIK-MIX CON- GRE'IFE ltliIlIXJilR (30., 013 PtItt'l 'WAtitI-IIHG'IIUN, WIEGUNEKN.

CONCRETE MIXER.

Application filed May 1, 1926. Serial No. 105,952.

llhis invention relates to minors.

tli'iuerete oi: the type having a roor ot movable mixing; chamber are .1 rcquer ly proi 'irled with loading buckets or membe 'ch are raised by power means to discharge into the mouth of the tilted mixing; vessel. Various means have been attempted tor permitting}; the accurate and on tllllilpiligy; oi the material into the ll'llli bu, 'CSEBQl, but thes devices have heretoiore J been. relatively couu ilicated and have had a.

large hurnher ojt movable parts lilrely to get out ot order.

Objects oil this invention are to overcome the detects noted above, and to provide a loading: bucket tor a concrete nuiirer which is so constructed that a iuiniinuui number oil movable parts are en'iployed, and in which a very sturdy construction results.

l urther objects are to provide a novel term of concrete miner which is of the .utinost simplicity, which may be easily operated, and in which. the parts are so formed that the niininniin of friction occurs.

An embodiment of the invention is shown in the accompanying drawings, in which:

Figure l is a. side elevation of the mixer showing the bucket in its lowered position.

Figure 2 is a fragmentary sectional View on the line f3---2 of Figure 1.

llipgure 3 is a sectional "View on the line tl----t3 ol' liie ure .ltelerrin e' to the drawings, .it Will be seen that the uurting vessel is indicated at 1 and 'arried in any suitable inai'uier by means of a. relatively stationary frame 2, such :tramo being mounted in any convenient man nor as tor example, upon the wheels 3 to render the device portable.

'lhe frame is provided with uprights Li and with a lower diagonal brace 5 and an upper diagzgoual brace (t. The upper [.iortiou of the frame is provided with pulleys or drums which receive the elevating cables 9.

The loadiu b'uehret fl is rigidly attached. to a pivotally mounted frame provided with a. pair of tor 'ardly extending: arms 10. These arms are proridm'l with rollers ll at their eatreu'ie torward rods and the rollers are Cft'llltitl within the arcuate slots or grooves termed in guiding; members 12 shown particularly in Figure 1. These guides 12 are fixed a .d secured to the frame lugs i3 and l l see l i rures end il which are riveted or otherw secured to the upport for the rollers ll. Ti lie guides are cl sednt their ends as indicated at and to in t euro 1.

he; the device the charge is deposited in the bucket 9. and the oables are operated to elevate the bucket. The bucket swings about the tor-ward ends oi the arms lth such tor-ward ends being adjacent; the. tor-ward end. oi the statioiu ry guides 12 during; the initial elevating inotion oi this bun-hot. Il'hm'ever, when the bucket arrives at a. position near the end. of its stroke, the arms it) contact with a transverse angle iron or stop which is rigidly carried by the uprights t as shown in Figure 1. This causes the then lower end of the arms to more outwzurdly along the guide 12 until the ends oil theories, or in reality, the rollers 11, are stopped by the ends 15 of the guides 12 as shown in dotted lines in Fig ure 1. This causes a quick tilt to the bucketand allows it to rock about a new center so that it will accurately and quickly dump its charge into the mixing vessel.

When the bucket is lowered during the first portion oi? its downward motion, the forward ends of the arms 10 slide to their initial position adjacent the forward ends oi? the guides 1.2, and the bucket is lowered into its position shown. in lull lines in Figure 1.

It. will be seen, therefore, that the bucket swings first about one center and thereafter towards the liuish of its strolvo quickly swings about another eeuhox, thus insuring lllt 'g'uidesfor guiding the forward ends of said 1. In a mixing machine, the combination of amixing vessel, a frame supporting said vessel, a loading bucket adapted to discharge mater1al1nto said mixing vessel and having a palr of forwardly extending arms, a pair of fixed guides for guiding the forward ends of said arms, said arms being permanently operatlvely connected to said guides in all positions of sa1d bucket from loading position to discharge position, and

means for elevating said bucket and draw ing it forwardly, whereby said bucket will pivot about one center during its initial elearms and permitting the rearward sliding of Saidfor'ward ends, means for elevating said bucket; and astop' carried by said frame, said arms being adapted to engage said stop intermediate their ends during the last portionot the elevating motion of said bucket.

3. In a' mixing machine, the combination are frame having a' pair of uprights, a transverse stop secured to said uprights, :1

-- mi xin ve'ssel supported from said frame, a

chergmg'backet for said Vessel, a pair of atriiis'securedto said bucket and having waraiy prb eang arms, pair of fixedguides carried by said frame and receiving and guiding the forward ends of said arms, said guides permitting inward and outward motion of said arms, and an elevating cable for rocking said bucket about the forward ends of said arms, said arms being adapted to strike said stop intermediate their endto cause the forward ends of said arms to swing rearwardly in said guides, whereby said bucket swings about a forward (enter during its initial rising movement and swings about a rearward center during its final rising movement.

4. In a mixing machine, the combination of a mixing vessel, a frame supporting said vessel, a charging bucket having a pair of forwardly extending arms, a pair of tixed curved guides extending out-ward]; and up wardly for guiding the forward ends of said arms and permitting the rearward sliding of the forward ends, means for elevating said bucket, and a stop carried by said frame, said arms being adapted to engage sai'd stop intermediate their ends during the last portion of the elevating motion of said bucket, whereby the forward ends of said arms are given a quick upward motion by the upwardly extending portions of said guides.

In testimony that I claim the foregoing I have hereunto set my hand at Port YVashin'gton, in the county of Ozaukee and State of Wisconsin.

JOHN P. GILSON. 

